A married, former US track star who competed in three Olympic Games and worked with Disney and Nike has been living a shocking double life for the past year as a $600-an-hour-hooker.

Perky blonde Suzy Favor Hamilton — a 44-year-old motivational speaker with a disarming girl-next-door smile — turned high-priced tricks in posh Las Vegas hotel rooms and other love nests around the country, according to a bombshell new report.

She called the lifestyle “exciting” — but admitted that, as a mom and wife, she did wrong.

“I take full responsibility for my mistakes. I’m not the victim and I’m not going that route,” Favor Hamilton, of Madison, Wis., told The Smoking Gun Web site. “I’m owning up to what I did. I would not blame anybody except myself.”

Steamy, lingerie-clad images of the champion runner helped tout her services on the Web site of a Vegas escort agency called Haley Heston’s Private Collection, where Favor Hamilton operated under the name “Kelly Lundy,” according to The Smoking Gun.

Customers could hire her lithe Olympic-class runner’s body for $600 an hour, $1,000 for two hours and $6,000 for 24 hours. The site described her build as “athletic,” her bosom as “perky,” and her belly button as “pierced.”

She was willing to provide horny customers the full “girlfriend experience,” and would also engage in a certain undisclosed sex act for an extra $300.

“I enjoy men of all shapes, sizes and colors, and I have an affinity for women (I am bisexual),” “Kelly” wrote on her page on the escort service’s Web site. “I consider dates with couples an experience to cherish.”

Her sexual skills reportedly earned her a high rating on The Erotic Review, a Web site frequented by prostitution fans.

Favor Hamilton’s lusty secret life might have stayed secret if she had not made the mistake of revealing her true identity to some of her wealthy johns, who went to the media.

Yesterday, the former Olympian took to Twitter to explain her hooker high jinks.

“I was drawn to escorting in large part because it provided many coping mechanisms for me when I was going through a very challenging time with my marriage and my life . . . It was a double life,” she wrote.

“I do not expect people to understand, but the reasons for doing this made sense to me at the time and were very much related to depression.”

Hamilton told The Smoking Gun that her husband, Mark, knew about her prurient part-time job.

Yesterday, Mark Hamilton told The Post that her call-girl life almost tore apart their marriage, but he hopes their relationship can be saved.

“Yes, I knew,” said Mark, a former college baseball player who met Suzy at the University of Wisconsin-Madison. “We were essentially separated the past year. We are trying, with help, to see if we can make it work.

“Suzy is a good person who went down the wrong path, obviously.”

Before yesterday’s salacious revelation, Favor Hamilton was best known for running down the path to glory.

A seven-time US national champion and nine-time NCAA titlist in middle-distance events, Favor Hamiton’s stellar running career was marred in the final of the women’s 1,500 meters at the 2000 Sydney Olympics.

After leading with half a lap to go, Favor Hamilton deliberately fell on the homestretch when she was suddenly passed by several runners and she realized she couldn’t win.

She had been desperate to win the race to honor her brother, Dan, who committed suicide in 1999.

In the years since, Favor Hamilton had settled down in Madison and worked in real estate with her husband.

After the birth of her daughter in 2005, she reportedly suffered postpartum depression and started taking the antidepressant Zoloft, according to The Smoking Gun.

The site said Favor Hamilton started working as a call girl in December 2011.

Under the name “Kelly,” Favor Hamilton quickly became popular with discerning johns and wound up turning tricks across the country in places such as Vegas, Houston, Los Angeles and Chicago, The Smoking Gun reported.

On her escort-site profile, “Kelly” wrote, “I met Haley with the idea of fulfilling a fantasy and only doing it for the short term.”

Tweets from Haley Heston in late August said that “Kelly” would soon be in Orange County, Calif..

Coincidentally, Favor Hamilton was in the area at about that time to run in a half-marathon and speak at Disneyland. She was not a Disney employee.

She also spent a lot of time in Vegas where, despite its reputation, prostitution is illegal, The Smoking Gun said. According to her schedule on the Haley Heston Web site, “Kelly” had several Sin City “incall/outcall” appointments available in October, November and December.

“For dates I prefer a San Pellegrino or a nice Pinot Noir,” she wrote on the Haley Heston Web site. “I never expect gifts, but if one ever wants to provide a special treat for me, I have a liking for Louis Vuitton . . . and Christian Louboutin. Expensive tastes I know ;).”

She was so popular, she became Vegas’ No. 3 call-girl “provider,” according to The Erotic Review, The Smoking Gun reported.

That bronze-medal performance is better than she ever did in three Olympic appearances, in 1992, 1996, and 2000. She reached the finals of only one event, when she fell in 2000.

After The Smoking Gun started investigating Favor Hamilton’s double life, Haley Heston removed all traces of “Kelly” from its Web site.

Before her page came down, “Kelly’s” next Vegas stint had been set for early next month.

In a tweet yesterday, Favor Hamilton said she was now seeking a psychologist. She also apologized to her family.

“I cannot emphasize enough how sorry I am to anyone I have hurt as a result of my actions and greatly appreciate the support from family,” she wrote on Twitter.

“As crazy as I know it seems, I never thought I would be exposed, therefore never hurting anybody.

“I have been seeking the help of a psychologist for the past few weeks and will continue to do so after I have put things together.”

Her husband said he just wanted to move on.

“[I’m] trying to help her through all of this and, most importantly, continuing to protect our daughter,” he told The Post.